Alarm clock attachment



Fe b. 28, 1933. E. SCHAEFER ALARM CLOCK ATTACHMENT Original Filed May 17, 1927 21 HIHIIH" I I INVENTOR Int/t .S'r/zmyrr bv'lwv'7i ATTORNEY Patented Feb. 28, 1933 PATENT OFFICE EBICH SUMMER, OF NEW YORK, N. Y.

ALARINL CLOCK ATTACHMENT Beflled for abandoned application Serial No. 192,010, filed May 17, 1927. This application filed February 27, 1932.

This invention relates to improvements in attachments for alarm clocks or the like, being a substitute for my abandoned application Serial No. 192,010, filed May 17th, 1927, al-

lowed February 4th, 1930, and it is the principal object of my invention to provide an attachment adapted to be operated by the rotation of the shaft or spindle of an unwinding alarm clock spring upon the release of the same at the predetermined time at which the alarm mechanism is set to operate, so that the attachment will operate a switch toclose a circuit in which for instance a radio instrument, a light and a cooker are located,

1 so that the radio starts to operate, the light is illuminated and the cooker is started in its operation.

Another object of my invention is the combination of an alarm clock with a plurality 2 of electrically operated devices in such manner that any of these devices'or all of them can be started to operate upon the closing of the circuit in which these devices are located, and which is adapted to be connected to a main electric circuit by a switch operated from the alarm mechanism of the clock at the time for which the alarm has been set, suitable means being provided to cut out the alarm when desire A further object of my invention is the provision of an attachment for alarm clocks in which a nut adapted to travel on and rotate with the spindle for the alarm spring mechanism, is guided by suitable means and adapted to operate a switch for closing the circuit which is opened after the proper per formance of the operations required by the winding of the alarm operating spring for a new setting.

A still further object of my invention is the provision of a device of simple and inexpgnsive construction, yet durable and eflicient in its operation, and one which can be readily attached to any of the alarm clocks at present in use without requiring material changes. A

These and other objects and advantages of my invention will become more fully apparent as the description thereof proceeds, and

Serial No. 595,511.

Fig. 1 is a front elevation of an alarm clock equipped With an attachment constructed according to my invention.

Fig. 2 is a side elevation thereof, partly in section to illustrate the interior arrangement.

Fig. 3 is a section on line 33 of Figure 2,

Fig. 4 is a sectional plan view, the section being taken on line 44 of Figure 1.

Fig. 5 shows the circuit in diagram.

As illustrated on the drawing, 10 is a housing of any desired shape and material in which the alarm clock proper 11 of the usual well known construction is held having the customary dial plate 12 and time hands, and alarm hand 13 and dial within the clock, as it is well known.

The spindle 1 1 for winding the spring of the alarm mechanism, the spindle 15 for setting the alarm mechanism, the spindle 16 for setting the hands of the clock, and the spindle 17 for winding the clock spring are extendedto project beyond the rear wall of the casing, as illustrated in Figure 2, and carry at their extreme outer ends the customary handles for operating the spindles.

The spindle 14 has a threaded part within the casing, designated 18 .upon which a nut 19 or the like travels during the rotation of said spindle by the released and unwinding alarm mechanism spring in the direction from the rear wall of the casing 10. It will be clear that this direction can be changed when the spindle turns in the opposite direction so that in such case the nut will travel in the direction towards the rear wall of the casing.

A switch or circuit closer on a base 20 attached to the inner face of the rear wall of casing 10 has the usual contact posts 21, 22, thereon, to the upper one, 22 of which a switch closer or knife 23 is pivotally attached, as at 24. To the pivot 24 is also attached the lower end of a link 25, having an elongated slot 26 formed therein in which a pin 27 or the like is guided and travels and which is attached to nut 19.

It will be clear that in case of change in the direction of travel by the nut, the pivot point for the knife will be arranged at the lower post.

The dotted lines. in Figure 2 indicate the position of the nut and knife when the mechanism is set anew for another operation by the winding of the alarm spindle spring.-

The contacts 21 and 22 are connected by means of the conductors 28, 29, to the socket 30 for connection with the main electric circuit. The contacts 21, 22, are also conductively connected by means of the conductors 31, 32, to the sockets 33, 34, 35, allowing the connection by plugs, etc., of a radio instrument, a lamp and a cooker.

The element 36 serves to release or stop the working of the alarm mechanism in the usual well known manner, if this is desired for any reason.

The operation of my device will be en'- tirely clear from the above description by the inspection of the drawing, when the mechanism is set to operate at a certain hour as is customary, and the spring spindle thereof rotates during the unwinding of the spring, the nut will travel along the extended spindle and close the knife switch and the circuits in which the radio, the lamp, and the cooker are located to operate these elements, while the connection with the main circuit over socket 30 has been previously established at the time of setting the alarm mechanism.

It will be clear that the alarm mechanism may be allowed to run down in the usual well known manner until it stops upon the unwinding of its spring, or it may be stopped, if, this should be desired, by the proper operation of the element 36.

It will be understood that I have shown and described the preferred form of my device as an example only of the many ways in which the same may be 1practically constructed, and that I may 'ina e such changes in the general arrangement and in the construction of the minor details of my invention as come within the scope of the appended claim without departure from the spirit of the invention. 7

Having thus described my invention what I claim as new and desire to secure by Letters Patent is: v

- In a device of the character described the combination of the alarm winding stem of an alarmclock with a two-armed knife switch within the housing of said alarm-clock for closing an electric house light circuit, a threaded part on said stem, 'a nut traveling on the threaded part of said stem during the unwinding of the alarm spring, and a connection between said knife switch and said nut, said connection comprising a pin on said nut, one arm of said knife switch having an elongated slot in whichw said pin travels, the

other arm pivoted to the lower end of said 7 of February, A. D. 1932.

ERICH SCHAEFER. 

